%0 Journal Article %A BAVULA, V. V. %T SIMPLICITY CRITERIA FOR RINGS OF DIFFERENTIAL OPERATORS %J Glasgow mathematical journal %D 2022 %P 347-351 %V 64 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089521000148/ %R 10.1017/S0017089521000148 %F 10_1017_S0017089521000148